Ice-cream freezer



(No Model.) 2 sheets-sheet 1.

E. H. SHAW.l

1GB CREAM FREEZBR.

No. 428,148.- Patented May 20, 1890.

@mib/wwe@ v 1 1 l "i i u W f/ um l'zwrziww 351g lm-S moz/nego /l l r I(No Model.)

2 Sheetsf-Sheet 2.

E. H. SHAW. y IUE CREAM. FREEZER.

Patented May 20, 1890..

UNITED STATES PATENT OFFICE.

ELNER H. SHAV, OF CLAY CENTRE, KANSAS.

ICE-CREAM FREEZER.

SPECIFICATION forming part of Letters Patent No. 428,148, dated May 20,1890.

Application filed December 19, 1889. Serial No. 334,265. (No model.) i

.To a/ZZ whom it may concern:

Be it known that I, ELNER H. SHAW, a citizen of the United States,residing at Clay Centre, in the county of Clay and State of Kansas, haveinvented a new and useful lee- Cream Freezer, of which the following` isa specification.

This invention has-relation to ice-cream freezers; and among the objectsin view are to produce a cheap and simple freezer designed to rapidlyfreeze the cream, and this with a reduced amount of refrigerative agent,

' thereby effecting a saving in the cost of the same and the time andlabor usually expended in operating the freezer.

lVith these general objects in lview the invention consists in certainfeatures of construction, hereinafter specified, and particularlypointed out in the claims.

Referring to the drawings, Figure l is a perspective of a freezerconstructed in accordance with my invention. Fig. 2 is a similar view,the cover thrown back. Fig. 3 is a vertical longitudinal centralsection; Fig. 4, a perspective of the rotary freezing-cylinder;

Fig. 5, a similar view of the stationary freez-V ing-chamber; Fig. G, aperspective of the delivery-blade.

Like numerals of reference indicate like parts in all the figures of thedrawings.

l represents a chest of suitable dimensions, which is supported bysuitable legs 2, and to one edge of the chest there is hinged the cover3, the free edge of which is provided with hooks 4 for engaging the eyes5, inserted in the chest in line with the hooks, whereby said cover maybe temporarily locked in a closed position. The opposite longitudinalsides of the chest 1 are each provided with an open bearing 6.

7 represents the rotary freezing-cylinder, and the same is provided withopposite conical ends 8, from which projects stub-shafts 9, taking intothe bearings G, one of said shafts being bent to form a crank-handle lO,whereby the cylinder lnay be revolved. The central periphery of thecylinder is provided with an inwardly-disposed annular channel ll, andat one side of the same there is provided an opening 12, covered by ascrew-cap 13, by which the refrigeratve agent, preferably crushed ice,is introduced within the cylinder.

14 represents a stationary oblong ice-chamber inserted between theopposite walls of the reduced channel and the ends walls of the chest,that wall of the chamber adjacent to the channel being concaved orsemi-cylindrical and adapted to embrace the cylinder for about one-halfits circumference, and form between the same and the channel a narrowspace. The upper end of the stationary chamber is provided with anopening l5, at the opposite sides of which are ways 1G, into which isslid a removable cover 17.

A recess 1S is formed in oneof the'end walls of the chest and oppositeto the stationary refrigerative-chamber 14, and mounted within therecess is a scraper or delivery blade 19, the rear end of whichprotrudes from the opening out of the chest and the front end of whichextends into the chest and against the reduced channel of therefrigerative cylinder. The blade is of a width agreeing with thechannel and has its lower edge snugly pressed thercinto by means of acoiled spring 20, which connects the rear 'extremity of the blade withthe end walls of the chest.

2l represents a cross-bar mounted between the opposite side walls of thechest and resting upon the blade, and serving to maintain the same inproper relation wit-h the rotary cylinder.

2 represents a cream-feeding can, from the bottom of which there dependsa conical spout 23,'which takes into an opening 24.` of correspondingshape formed in the hinged cover 3 and directly over the channel of thecylinder. The upper end ofthe feeder is provided with a removable cover25, in which is formed an opening 2G, and through the opening anddepending into and closing the conical spout is a rod 27, provided atits lower end with a conical valve plug or head 28.

The operation of' my invention is as follows: The rotary cylinder andthe stationary ice-chamber are both filled with the refrigen ative agentand the cream-feeder mounted in position upon the hinged cover. Therotary cylinder is now rotated to the right by means of the cranlchandleand the rod 27 raised to permit the cream to 'Ilow from this feeder uponthe channel formed in the revolving cylinder, which cream is carried ina thin sheet around and between the semi-cylindrical face or side IOOwalls of the stationary refrigerator-tank and to the delivery-blade l0,which scrapes the cream from the surface of the channel, and the samefalls through an opening 30, formed in the bottom of the chest. By thisconstruetion it is apparent that the cream will be thoroughly frozen ina very short space of time and with a minimum amount of refrigerativeagent.. .By reason of the conical ends 0l the rotary freezing-cylinderthe freezing medium or agent is all thrown to the center of the cylinderand surrounds the reduced channel, whereby the tull eiteet of the sameis transmitted to the thin layers of cream as they pass around thecylinder.

The stationary refrigerati11g-chamber may be removed for cleaningpurposes, dsc., by revolving the same partially to the lett andelevating. The rotary cylinder may also be removed for similar purposesby iirst remov ing the stationary chamber and then lifting the cylinderfrom its bearings.

It is apparent that by a freezer thus constructed either large or smallquantities of cream maybe frozen at a time and the device is adapted forboth retail and wholesale.

llaving thus described my invention, what I claim isl. In an ice-creamfreezer, a receptacle, a rotatable freezing-cylinder mounted therein andprovided with a channel, a scraping-blade terminating in the channel,and a stationary freezing-chamber embracing the cylinder, all combinedand operating substantially as specified.

In an ice-cream freezer, a rotating refri ge1ativereceptaele ofcylindrical shape and having opposite conical ends, and an intermediatecream-receiving channel, in combination with a freezing-chamberembracing the channel portion of the cylinder, substantially asspecified.

23. The combination, with a receptacle, a rotating refrigerativeeylinderprovided with a peripheral channel mounted in the same, of arefrigerating-chamber mounted on one side of and embracing the channelportion of the cylinder, and a cream-feeding can mounted above thecylinder and having a spout adapted to deliver cream within the channelof the same and directly infront of the chamber, substantially asspecified.

l. In an ice-cream freezer, the combination, with a receptacle and arotatable freezingcylinder having the peripheral channel, of astationary freezing-chamber mounted in the receptacle at one side ol'the cylinder and having a semieircular concaved side wall looselyembracing the cylinder and combining therewith to form an intermediatechannel, substantially as specified.

5. The combination, with the chest l, havin g an opening' in its bottom,and the hinged cover having the opening 24, of thefreezingcylinderremovably mounted in the chest and provided with auoperating-crank, and provided with a central peripheral channel, ascraper-blade terminating in the channel, a stationary ice-chamberlocated at the opposite end ot the chest and of a width corrcspondin gwith the channel and having its side Wall concaved to embrace thechannel and located a slight distance from the same, and thecream-receptacle mounted on the hinged cover and having a spout insertedthrough an opening in the same and arranged over the channel, and avalve-plug mounted in the spout., substantially as specified.

In testimony that I claim the foregoing as my own I have hereto altixcdmy signature in presence of two witnesses.

ELNER ll. SHAW'. lVitnesses:

M. S. ToNsEv,

LArNmvoi-rrI-Iv.

